Jumpstart: Historic Horizons Spellbook Cards Tome of the Infinite Spellbook Swords to Plowshares Force Spike Lightning Bolt Fog Light of Hope Dark Ritual Assault Strobe Ponder Duress Giant Growth One of the few entries without a full 15 cards, but these are pretty bonkers
Unlike the retro-framed reprints, these are not guaranteed to be found in every pack
Punisher effects like Ob Nixilis, the Adversary and Torment of Hailfire are certainly powerful, but I wanted to focus on cards that definitely get the job done
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Notes and Rules Information for Training Grounds: Training Grounds won't affect a cost that isn't the cost to activate a creature's activated ability
Second, we lose the Ghost Quarters and Tectonic Edge from our mana base
Karmic Guide For the uninitiated, this card seems pretty awkward